There is considerable misinformation about the radiation risk related to CT scans in general and CT scans of the chest in particular .
- There is no known risk of radiation from CT scans including CT scans of the chest, when the radiation is less than 50-100 mSv (it is 1-3 mSv for a plain CT scan of the chest)
- This is 126 years after the discovery of X-rays, 125 years since the invention of the first X-ray machine and 49 years since the first CT scan images
- Comparing radiation from chest CT scan with radiation from chest X-rays is hence irrelevant
- There is no such thing as cumulative radiation risk, unless the cumulative radiation is more than 100 mSv in one-two days
This video explains all this in short
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